Duplicate-shaping machine.



O JENSEN. DUPLICATE SHAPING MACHINE. APPLIGATION FILED AUG. 20, 1

Patented June 28,1910.

2 SHEETS-SHEET 1.

.. W/MESSES: I INVENTOR.

1?- 2 "w 0/706 J/7J6/7 av /6M4 A By ATTORNEY O. JENSEN. DUPLICATE SHAPING 'MAGHINE.

APPLICATION FILED AUG. 20, 1909.

' Patented June 28, 1910.

I /2 G/1 L 2 SHEETS-SHEET 2.

WITNESSES UNITED srnrns rgrnnr onnion ULAUS JENSEN, OF SEATTLE, WASHINGTOT DUPLICATE-SHAPIN G lVIA CHINE.

Specification of Letters a Patented June 28, 1910.

Application filed August 20, 1909. Serial No. 513,727.

:Machines, of which the following is a speci The object of this invention is the improvement inmachines for duplicating irregular shapes through the employment of a cutting tool operating on a blank, working in conjunction with a guide which traverses a model.

A further object of the invention is to adapt said cutting tool so that in chipping the blank it may be regulated to remove the chips in any direction to acconnnodate the machine to the grain of fibrous material.

A. still further object is to provide means whereby scope of the guides travel regulated.

The invention consists in the novel construction and combination of parts, as will be hereiafter described and claimed.

In the accompanying drawings, Figure l is a front elevation of a machine embodying any invention. Fig. 2 is a plan view of the same. Fig. 8 is an end elevation thereof.

Fig. 4 is a cross sectional view taken through ak-4 of Fig. 2.; Fig. 5 is'a similar view taken through 5-5 of Fig. 1.

' The reference numeral IO designates the base of the machine frame and'is provided at the rear with standards 11 which support a transversely arranged oscillatory shaft 12.

A frame 13 is secured to said shaft so that its front end is free to swing up or down and is provided. to. the rear of the shaft 12 with counterweights 14, or an equivalent, to nearly'balance the aggregate weightsof the frame to the front of its pivotal connection and parts sustained thereby. In the for: ward portions f the respective members- 13 of such swingable frame is a plurality.

of rotary disks 15 which are disposed to have their axes in alinementwit-h c'achother and in parallel with the axis of the shaft 12. Fitted for endwise movement in said disks and axially thereof is a transversely arranged bar 16. Formed integral with. or

rigidly connected with the bar, 16 is a depending circular plate 17 havini'i'in its lower facev an annular groove 18, Fig. 5, corresponding wlth an opposing grooveli) in the upper face of a companion plate 20.- Balls ture in the arm 31.

21 positioned in said grooves coact with the plates to serve as antifriotion bearings and facilitate the rotary movements of the frame 22 which includes the plate 20.

The last mentioned frame 22 is suspended by a bolt. 23 extending axially through said plates and also through said bar and is ad justably secured to the latter by the boltnuts 21 which are superposed upon the-bar.

is provided with journal v The frame 22 bearings for the arbor 26 of a cutter head 27 whose axis of rotation is perpendicular to that of the axis of rotation of frame 22.

Said cutter head is disposed symmetrically with respect to the axis of rotation of the frame 29 As illustrated, said arbor serves the armature shaft of an electric motor 28 which is fixedly secured to frame 22 though, if desired, intermediate connections may be had between the motor and the arbor instead of having the latter directly driven, as shown. The motor is located, however, so that it will not interfere with the material being operated upon by the cutting knives 29 carried by said head.

Adjustable lengthwise upon the bar sleeve 30 which has 21. depending tubular arm 31, Fig. 4:, to serve as the socket for the shank of a guide element.- 33 and which secured in adjusted position by a set screw 34: ext-endii'lg through a threaded aper- The configuration of the guide corresponds with the effective cutting edges of the knives 29.

35-represents a model, or pattern, which may be of metal-and is desirably secured to the machine base 10' by a clamping member 86 which is characterized by having an up outside of the areainclosed thereby. This function of the invention will be understood hem an inspection of Fig. 4 where the guide shown in an extreme position by broken lines cod 87 represents the work which is desirably it secured to the machine base by a clamping 'membcr .88 having an interior opening of suchdimensions that the cutter knives will not encounter the member when the cutter head has. been, moved toits maximum ex tent as controlled by the movements of the guide when limited by the aforesaid flange 3(3Q of the member 36.

A wire 3%), incl tedby broken lines in Fig. 5, is, upon occasion, inserted through an aperture l0 in the cutter head and has its up ier end introduced within a recess -11. provided in the end of the bolt 23, while the lower end of the Wire affords a pointer which by a proper swinging of the frame 13 and bar 16 may be brought to inarks inscribed on the work.

In the guide 33, see Fig. 4, there isa cavity 42 extending up into the shank 32 for the accommodation of a pin 41-3 which is connected to a finger 4 L protruding from a slot in said shank and wher eby the pin may be moved outwardly from the undersideof the guide and in opposition to a spring which normally retains the pin 4-3 in sheathed condition. The wire 39 and pin 43 are used for locating-the relative positions of the pattern and work from correspomlingly disposed marks upon the respective parts and which, if found to be out of register with the wire and pin, can be brought into such corrcspondence by shifting either the pattern or the work. Rather than disturb the pattern or the work it is usually more convenient to adjust the sleeve 30 upon the bar 16 which may readily be done after loosening a screw -16 which is provided to fasten the sleeve in place. The extension of the guide with respect to the bar and relative to the cutter head is accomplished by adjustably moving the shank32 in its socket.

The operation of the invention is as follows: The operator by grasping the arm 31 in his right hand directs and actuates the guide to cause it to pass over the surface of the pattern and against which it is pressed by the unbalanced weight of the frame 13.- In, passing over such surface the bar 16 is rocked to swing the arm 31 to andfro and is likewise moved longitudinally to enable the guide to reach the extreme ends of the pattern. Meanwhile the cutter or cutter head 27, which is rotated by the motor at a high velocity, is caused by its connection with. the

bar ,16.

bar 16 to partake of the various movements of the guide. Consequently, all of the material from the work 37 over a surface of the latter like that of the pattern is removed from the work through the instrumentality of the cutter.- During the progress of the operation, the operator with his left hand swings the frame 22 so that the cutting tool is at all times 'ncsentcd to the work in such a manner that it is cutting with the grain, or nearly so, of the material and thus obviate the danger of tearing the same and producing a finished surfaceupon the work.

Relative to the machine the guide has three motions: verticahflwith the swinging of the frame 13; transverse, with the lengthwise movemcntspof the bar 16; and, longitudinal, through the conjoint actions of the swinging-frame 13 and the rocking of the All of these motions are concur rently transmitted to the tool, or cutter head,

which has, additionally, an independent rotary motion about the axis of the swivel connection of its frame 22 With the bar 16. By the provision of the flange 36' about the pattern to confine the range of travel of the guide, the entire attention of the operator may be directed to the work.

Having described my invention, what I claim as new and desire to secure by Letters- Patent, is

1. In a shaper 'of the class described, a longitudinally movable and rotatable bar, a frame connected for rotation to the bar, a cutter carried by the frame, means supported by the frame for rotating the cutter, a pattern, and devices cooperating with the pattern for directing the movements of the bar whereby the cutter will be affected to afford a r luplication of the pattern upon a blank.

2. In a shaper of the class described, the combination with the machine frame, a vertically swingable frame, supported by the machine frame, a bar carried by the second named frame and arranged for both rotary and sliding movements, a pattern secured to the machine frame, means for securing the blank work to the machine frame, a cutter, a cutter suspensionmeans depending from the bar, means carried by the suspension means for in'iparting rotary motion to the cutter, and a guide'carricd by the bar and adapted to enact with the pattern to direct the movements of the bar and second named frame so that said cutter will partake of movements suitable to'form the blank into an exact resemblance to the pattern.

In a shape:- of the class described, the

combination of the machine frame, another frame, a bar carried by the second named frame and arranged for both rotary and longitudinal movements therein, a third frame suspended fromsaid bar and arranged for rotation about the axis of the suspending element, an arbor journaled in the last mentioned frame, and perpendicular with respect to the axis of rotation of such frame, power devices for driving the arbor,

a guide carried by said bar, a pattern and,

the last mentioned frame, and perpendicular a 125 with respect to the axis of rotation of suchi frame, power devices for driving the arboxg; a guide carried by said bar-,fl patterm-andg means for securing a blank to themachine frame.

frame and arranged- 5. In a shape'r of the class described, the combination of the machine frame, a liorizontal shaft journaled therein, a frame mounted for vertical oscillation upon the shaft, a bar carried b the second named or both rotary and longitudinal movements therein, a thirdframe suspended from said barand arranged for rotation about the axis of the suspending element, anti-friction bearings intermediate the third frame and said bar, an arbor journaled in the last named frame and perpendicular with respect to the axis of rotation of such frame, power devices for driving the arbor, a guide carried by said bar, a pattern, and means for securing a blank'to the machine frame.v

6. In a shaper 'of the class described, the

combination of the machine frame, a second frame connected for oscillatory movement T with the machine frame, rotary disks carried by the second frame, a bar extending through said disks and arran ed to be moved axially therethrough, a third frame suspended from said bar and arranged for rotation about the axis of the suspending element, an arbor journaled in the last mentioned frame and perpendicular with respect to the axis of rota tion of such frame, power devices for.dri.ving the arbor, a fguide carried by said bar, a pattern, means or securing said pattern to the machine frame, and means for detachably securing a blank to the machine frame,

:7. In a shaper of the class described, the combination of the machine frame, a hori zontal shaft journaled therein, a frame mounted for vertical oscillation upon the shaft, otary disks carried by the second frame, a bar extending through said disks and'arranged to be moved axially therethrough, a third frame suspended from said bar and arranged for rotation about the axis of the suspending element, anti-friction bear-- ings intermediate the third frame and said bar, an a'nbor journaled in the last mentioned' frai'ne, and perpendicular with respect to the axis of rotation of 'such frame, power devices for driving the arbor, a guide carried by said bar, a pattern, means for securing said pattern to the machine frame, and means for securing the blank to the machine frame.

8. In a shaper of the class described, the

combination of the machine frame, a second frame connected for oscillatory movement With the machine frame, a bar carried by thesecond named frame and arrangedv for both rotary and longitudinal movements therein,

a third frame suspended from said-bar and arranged for rotation about the axis of the suspending element, anti-friction bearings intermediate the) third frame'and said bar,

an arbor journaled in the last mentioiied 

